const httpClient = require('https');

function queryRoutingSystem(ev) {

    const url = 'httsp://routing.server/inbound';
    const jsonData = JSON.stringify(ev);

    const options = {
        "routing.server", port: 443, "/inbound",
        method: 'POST',
        headers: {
          'Content-Type': 'application/json',
          'Content-Length': Buffer.byteLength(jsonData),
        }
    };
    return httpClient.request(url)
        .then(response => {
            if (!response.ok) {
                throw new Error(`HTTP error! status: ${response.status}`);
            }
            return JSON.parse(response.body);
        })
        .then(data => {
            return data;
        })
        .catch(error => {
            console.error('Failed to fetch time data:', error);
            return null;
        });
}

function preamble() { 
    return '<?xml version="1.0"?>\n'; 
    
}

function response(content) { 
    return `<Response>\n${content}\n</Response>\n`; 
}

exports.handler = function(ev, ctx, callback) {
  try {
    queryRoutingSystem(ev).then(routingResult => {
      const cxmlResponse = "<Dial trunks='" + routingResult.trunk + "'>"+ routingResult.destination + "</Dial>";
      callback(null, preamble() + response(cxmlResponse));
    }).catch(err => {
      callback(err);
    });
  } catch (err) {
    callback(err);
  }
};